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Table 9E — Medium-Static Drive Data, 60 Hz — SI
*Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting.
Table 9F — High-Static Drive Data, 60 Hz — SI
*Values for 3-phase motor shown. For single-phase motor, pulley pitch diameter is 178 mm and
resulting fan speed is 14.0-18.3 r/s.
†It is possible to adjust drive so that fan speed exceeds maximum allowable. DO NOT exceed
20 r/s.
**575-v unit has a center distance of 233-279.
UNIT
40RM
007
40RM
40RMQ
40RMS
008
40RMS
010
40RM
40RMQ
40RMS
012
40RM
40RMS
014
40RM
40RMQ
40RMS
016
40RM
40RMQ
40RMS
024
40RM
40RMQ
40RMS
028
40RM
40RMS
034
MOTOR DRIVE
Motor Pulley Pitch Diameter (mm) 86.4-
111.8
86.4-
111.8
86.4-
111.8
86.4-
111.8
86.4-
111.8
94.0-
119.4
109.2-
134.6
109.2-
134.6
109.2-
134.6
Pulley Factory Setting
Full Turns Open
2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0
FAN DRIVE
Pulley Pitch Dia (mm) 224 203 203 203 208 218 239 239 239
Pulley Bore (mm) 25.4 25.4 25.4 25.4 36.5 36.5 36.5 49.2 49.2
Belt No. — Section 1—A 1—A 1—A 1—A 1—A 1—B 1—B 2—B* 2—B*
Belt Pitch (mm)
1074 1024 1024 1024 1049 1062 1062
(2) 986
(2) 1011
(2) 986
(2) 1011
FAN SPEEDS (r/s)
Factory Setting 12.7 14.0 14.0 14.0 13.7 14.0 14.7 14.7 14.7
Range 11.1-14.4 12.2-15.8 12.2-15.8 12.2-15.8 11.9-15.4 12.4-15.7 13.3-16.4 13.3-16.4 13.3-16.4
Max Allowable Speed (r/s) 20.0 20.0 20.0 20.0 20.0 20.0 20.0 18.3 18.3
Change per
1
/
2
Turn of
Moveable Motor Pulley
Flange
0.328 0.360 0.360 0.360 0.352 0.278 0.255 0.255 0.255
MAX FULL TURNS FROM
CLOSED POSITION
555556666
SHAFTS CENTER DISTANCE (mm) 265-313 265-313 265-313 265-313 265-313 265-313 232-279 169-240 169-240
UNIT
40RM
007
40RM
40RMQ
40RMS
008
40RMS
010
40RM
40RMQ
40RMS
012
40RM
40RMS
014
40RM
40RMQ
40RMS
016
40RM
40RMQ
40RMS
024
40RM
40RMQ
40RMS
028
40RM
40RMS
034
MOTOR DRIVE
Motor Pulley Pitch Diameter (mm) 86.4-
111.8
86.4-
111.8
86.4-
111.8
86.4-
111.8
94.0-
119.4
109.2-
134.6
109.2-
134.6
109.2
134.6
109.2-
134.6
Pulley Factory Setting
Full Turns Open
2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0
FAN DRIVE
Pulley Pitch Dia (mm) 178 152* 152 152 188 201 188 203 203
Pulley Bore (mm) 25.4 25.4 25.4 25.4 36.5 36.5 36.5 49.2 49.2
Belt No. — Section 1—A 1—A 1—A 1—A 1—B 1—B 2—B 2—B 2—B
Belt Pitch (mm) 1049 947 947 947 1011 1011 935 935 960
FAN SPEEDS (r/s)
Factory Setting 16.0 18.7 18.7 18.7 16.3 17.7 18.6 17.1 17.1
Range 14.0-
18.1
16.3-
20.0*†
16.3-
20.0†
16.3-
20.0†
14.4-
18.3
15.8-
19.5
16.9-
20.0†
14.6-
17.9
14.6-
17.9
Max Allowable Speed (r/s) 20.0 20.0 20.0 20.0 20.0 20.0 20.0 18.3 18.3
Change per
1
/
2
Turn of
Moveable Motor Pulley
Flange
0.410 0.478 0.478 0.478 0.323 0.307 0.323 0.278 0.278
MAX FULL TURNS FROM
CLOSED POSITION
555566666
SHAFTS CENTER DISTANCE (mm) 265-313 265-313 265-313 265-313 265-313** 232-279 207-255 169-240 169-240